nothing, it only gives you benefits unless you take it to the extremes, the only people that will oppose to the notion of an hideous male improving himself are two types depending of their gender
Males: the Sexual market is competitive, just like any other market, so obviously they are going to have a harder time if now highly desirable males start to reincorporate in masses, so shame comes.
Females: despite all the virtue signalling, females are pretty much self-aware of their nature, imagine allowed being treated like a toilet because millions of year of evolutionary programming makes you believe that his genes are superior, only to discover that he was truecel, there's nothing more shameful for a female that getting fucked by an unnatractive male, surgerymaxxing in males is attacking their mating strategies, you are not supposed to have sex unless you belong to the tiny minority that managed to get extremely wealthy/high status, so attacks also comes, i''m think that the only thing that females despise more that ugly males are ugly males that get surgery.